diff --git a/pkgs/build-support/fetchgit/nix-prefetch-git b/pkgs/build-support/fetchgit/nix-prefetch-git
index ff84f5adce97..986f8af869e2 100755
--- a/pkgs/build-support/fetchgit/nix-prefetch-git
+++ b/pkgs/build-support/fetchgit/nix-prefetch-git
@@ -83,6 +83,7 @@ init_remote(){
     local url=$1
     git init
     git remote add origin $url
+    [ -n "$http_proxy" ] && git config http.proxy $http_proxy || true
 }
 
 # Return the reference of an hash if it exists on the remote repository.